JPH0366793B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a filamentous body such as an electric wire used in a waterproof connector etc., and particularly relates to a method for manufacturing a filamentous body having a waterproof plug attached to its tip, and This relates to manufacturing equipment.

[Conventional technology]

2. Description of the Related Art Electric wires used for various types of electrical wiring are stripped of their coatings at their tips and connected to terminal fittings at connection parts such as connectors, so that the conductor parts are exposed to the outside. Therefore, depending on the place of use, condensation may occur due to temperature changes, etc., and there is a risk of failure due to poor insulation.

To this end, waterproof plugs are provided at the connections between electric wires and connectors to prevent water droplets from entering.

FIG. 13 shows a device for attaching such a waterproof plug to the tip of an electric wire, which is described in Japanese Utility Model Application No. 60-111318.

In the figure, waterproof plugs a are continuously supplied by a magazine b, and are delivered one by one by the reciprocating motion of a pusher c. d is a vacuum hose that fixes the waterproof plug a in a predetermined position on the table. The insertion head e has a hole f into which the waterproof plug a is inserted, and can be moved up and down, left and right in the figure, and rotated by an angle θ. On the other hand, on the left side of the insertion head e in the figure, an electric wire g is held by a clamp h, so that when the insertion head e rotates and faces to the left, the axes thereof coincide.

To attach waterproof plug a to the tip of electric wire g, first remove one waterproof plug a from magazine b with pusher c.
and fix it in place on the table with vacuum hose d. Next, the insertion head e lowers, fits and grips the waterproof plug a into the hole f, returns to its original position above, rotates by an angle θ, and faces to the left. Next, the insertion head e moves to the left and attaches the waterproof plug a to the tip of the electric wire g. The fit of the waterproof plug a with the electric wire g is stronger than the fit with the hole f of the insertion head, so when the insertion head e returns to its original position,
The waterproof plug a remains on the electric wire g and is attached.

[Problem to be solved by the invention]

However, in this technique, the insertion head e rotates,
Furthermore, it had to move up, down, left and right, making the structure complicated and making it impossible to speed up the work.

The present invention has been made in view of the above facts,
The object of the present invention is to provide a method and apparatus for manufacturing a striated body equipped with a waterproof plug, which enables high-speed operation.

[Means to solve the problem]

In order to achieve the above object, the method for manufacturing a striated body equipped with a waterproof plug of the present invention includes a step of gripping the striated body with the tip thereof protruding, aligning the axes, and bringing the striated body toward the guide nozzle opening. , a step of advancing the guide nozzle to enter the tip of the filament into the guide nozzle, fitting a waterproof plug into the guide nozzle, adding air to the waterproof plug to transfer the inside of the guide nozzle, and inserting the tip of the filament into the guide nozzle. The structure consists of the steps of applying rotation to the waterproof plug using the formed spiral groove and fitting it into the tip of the filament.

Alternatively, in the above step, instead of the spiral groove, the guide nozzle is rotated around its axis to give rotation to the waterproof plug, and the waterproof plug is fitted into the tip of the filament.

Furthermore, in the above process, a waterproof stopper is provided at the guide nozzle opening, the waterproof stopper is transferred with air, the waterproof stopper is temporarily stopped, and the air pressure is reduced to a low pressure, and then the waterproof stop is stopped. The plug stopping means is retracted from the guide nozzle opening, the guide nozzle is rotated about its axis, and the air pressure is increased to a high pressure so that the rotating waterproof plug is inserted into the tip of the filament.

On the other hand, the apparatus for producing a striated body equipped with a waterproof plug includes a waterproof plug delivery means that can send out waterproof plugs one by one in the same direction, and a waterproof plug that receives the waterproof plug from the waterproof plug delivery means and can move forward and backward in the axial direction. a guide nozzle that receives high pressure air supply and has a spiral groove on its inner wall;
The linear body gripping means is provided at a position opposite to the opening of the guide nozzle, and grips the filament with the protruding tip of the filament facing the opening of the guide nozzle.

Alternatively, in the above structure, instead of the guide nozzle having the spiral groove, a drive means for rotating the guide nozzle about its axis is provided.

Alternatively, in addition to the above-mentioned configuration, a waterproof plug stopping means that can move forward and backward within the path of the guide nozzle is provided at a position facing the opening end of the guide nozzle.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram schematically showing an embodiment of an apparatus for producing a filament body equipped with a waterproof plug according to the present invention. In the figure, numeral 1 denotes a parts feeder as a waterproof plug supply means, which is installed on the floor or the like, and supplies waterproof plugs 2 in the same direction. 3 is a waterproof plug delivery means, which is a cylinder 3a fixed to an unillustrated underframe of this manufacturing device.
A partition plate 3b is fixed to the tip of the rod, and the waterproof plugs 2 are supplied to the air conveyance device 4 one by one. The air conveyance device 4 consists of a flexible air hose and a compressor (not shown), etc., and conveys the waterproof plug 2 by flowing high-pressure air (approximately 4 kgf/cm ² ) into the air hose at a desired timing. Reference numeral 5 denotes a guide nozzle, which is made of a hard, hollow pipe, and is connected to the air conveying device 4 through an air joint 6. 7
1 is a guide nozzle cylinder in which a guide nozzle 5 is fitted and moved back and forth in the axial direction. Reference numeral 8 denotes a U-shaped frame, which is fixed to an underframe (not shown), has a guide nozzle cylinder 7 and a guide nozzle 5 fixed in its center, and has two arms 8a and 8b which are opposed to each other and have a linear gripping member. Means 9, 9 are provided. The filament gripping means 9, 9 consist of an air cylinder 9a and a chuck 9b which is fixed to the rod of the air cylinder and slides in a direction perpendicular to the axis of the guide nozzle 5. The chuck 9b has a V formed at the tip.
The electric wire is gripped by the groove 9d. 10 is an electric wire as a filament body, and the coating at the tip is stripped off in advance and the core wire 1 is
0a is exposed, and a conveyor 1 separate from this manufacturing equipment is installed.
1 is held by a holding means 12 fixedly attached to the holding means 12 and sent one after another to this manufacturing apparatus. Although the electric wire is held by the holding means 12, since the distance to the guide nozzle 5 is long, the tip tends to hang down, and accurate positioning with respect to the guide nozzle 5 is also difficult. For this purpose, the striatal body grasping means 9,
9 is provided, but it is also possible to omit the gripping means 9 by having the holding means 12 carry them.

FIGS. 2a and 2b are detailed views of the waterproof plug 2. FIG. The waterproof plug 2 has a small diameter portion 2a on one side, which is a portion that is caulked to a terminal fitting (not shown) after being fitted onto the filament 10. The other side is the large diameter portion 2b, which is formed into a double brim shape and serves as a waterproof seal for the gap with the connector. At the center is a through hole 2 into which the electric wire 10 is inserted.
c is bored, and a tapered enlarged part 2d is formed at the large-diameter end thereof, so that the exposed core wire 10a of the electric wire 10 and its covering can be easily inserted.

FIGS. 3 and 4 are diagrams showing details of main parts of a manufacturing apparatus according to an embodiment of the present invention. The guide nozzle cylinder 7 is fixed to a frame 8, and the guide nozzle 5 is provided passing through the frame 8. The guide nozzle 5 is airtightly inserted into the cylinder 7 by an integrally formed flange 5a and a sealing ring 5b.
Moreover, it is fitted in a slidable manner. Air pipes 7a and 7b are connected to the cylinder 7 and connected to a compressor (not shown). Further, the guide nozzle 5 is connected to a flexible air hose of the air conveying device 4 through an air coupling 6. Therefore, when compressed air is supplied from the air pipe 7b, the guide nozzle 5 moves to the left,
When compressed air is supplied from the air pipe 7a,
The guide nozzle 5 moves to the right (basic position) in the figure.

The striated body gripping means 9, 9 and the frame 8 are slidably connected, for example, by a dovetail 9c and a dovetail groove 8c. The chuck 9b is slid by the cylinder 9a and grips the filament 10 by the V-groove 9d at the tip so that its axis coincides with the axis of the guide nozzle.

FIG. 5 is a diagram showing the inside of the guide nozzle 5 of FIG. 1. The guide nozzle 5 has a spiral groove 5c formed in its inner wall in order to give rotation to the waterproof plug 2.

Next, the operation of the embodiment shown in FIGS. 1 to 5 will be explained. First, the filament body 10 is gripped by the filament body gripping means 9 in the state shown in FIG. The coating at the tip of the filament body 10 has been peeled off in advance, so that the core wire 10a is exposed. Next, air is supplied from the air pipe 7b to the guide nozzle cylinder 7, the guide nozzle 5 moves forward toward the filament 10, and the tip of the filament 10 is put into the guide nozzle 5. On the other hand, one waterproof plug 2 supplied from the waterproof plug supply means 1 is fed into the air conveying device 4 from the waterproof plug delivery means 3. When the waterproof plug 2 is sent in, high pressure air (approximately 4 kgf/cm ² ) is supplied to the air conveying device 4.
The waterproof plug 2 flies through the air conveying device 4 and the guide nozzle 5 just like a bullet of an air gun, and the waterproof plug 2
reaches the guide nozzle 5. Then, rotation is given by the spiral groove 5c of the guide nozzle 5, and the fourth
As shown in the figure, it is fitted onto the tip of the filament.

When this state is reached, the waterproof plug 2 and the striatum 10
The fitting force between the waterproof plug 2 and the guide nozzle 5 is set to be larger than the fitting force between the waterproof plug 2 and the guide nozzle 5. Therefore, when high-pressure air is supplied to the air pipe 7a and the guide nozzle 5 is retracted to return to the state shown in FIG. Striatum 1 equipped with
0 is possible.

In addition, in FIG. 4, a slight gap S is created between the guide nozzle 5 and the filament gripping device 9 so that high-pressure air can escape. Instead of this gap, a configuration may be adopted in which a gap passes through the filament gripping means 9 when the V-groove 9d grips the filament 10.

The reason why the waterproof plug 2 is rotated is as follows. FIG. 12 shows the relationship between the tip of the filament 10 and the waterproof plug 2. The filament 10 is held by the filament gripping means 9, and the core wire 10a may be spread out as shown in FIG. 12a, or may be sagging as shown in FIG. 12b. In such a case, if the waterproof plug 2 comes without rotating, the core wire 10a will bend and pass through the hole 2c, causing a failure in connection with the crimping piece of the terminal (not shown). However, if it is rotating, the taper hole 2d at the entrance of the hole 2c of the waterproof plug 2 acts to give a slight twist to the core wire 10a. As a result, the core wire 10a is straightened as shown in FIG.

According to this embodiment, the guide nozzle 5 and the parts feeder, which is the waterproof plug supply means 1, are connected by the air conveyance device 4 having a flexible hose, so there is flexibility in the installation positions of both.

FIG. 6 is a block diagram of another embodiment. Roughly 1st
Since it is the same as the one shown in the figure, the differences will be explained below. First, a gear 14 is attached to the guide nozzle 5 and meshes with a mating gear 15 driven by a motor 16, and these gears 14, 15 and the motor 16 form a driving means 18 for the guide nozzle 5. . That is, the guide nozzle 5 is rotated about its axis, so that the waterproof plug 2 can be rotated.

Note that the gear 14 is slidably fitted into a long key 17 fixed to the guide nozzle 5. Therefore, the guide nozzle 5 can move forward and backward while rotating. Further, the guide nozzle 5 and the air conveyance device 4 are airtightly connected by a rotatable air joint 6.

The operation of the embodiment shown in FIG. 6 will be explained with reference to FIGS. 7 and 8, focusing on the differences from the previous embodiment. First, the filament body 10 is gripped by the filament body gripping means 9 in the state shown in FIG.

The guide nozzle 5 moves forward toward the filamentous body 10, and the tip of the filamentous body 10 is put into the guide nozzle 5. At this time, the gear 14 does not move, and as the key 17 slides on the gear 14, the guide nozzle 5
moves forward.

Almost before and after the guide nozzle 5 moves forward, the motor 1
6 is energized, gear 14 is rotated by gear 15, and guide nozzle 5 is rotated. The number of revolutions is 10~
It is about 20rps.

On the other hand, one waterproof plug 2 supplied from the waterproof plug supply means 1 is transferred from the waterproof plug delivery means 3 to the air conveying device 4
sent to. When the waterproof plug 2 is sent in, high pressure air is supplied to the air conveying device 4, and the waterproof plug 2 is fed into the air conveying device 4 just like a bullet from an air gun.
Then, the waterproof plug 2 flies through the guide nozzle 5, is rotated by the guide nozzle 5, and is fitted onto the tip of the filament as shown in FIG.

9 and 10 show an embodiment in which a waterproof stopper means 13 is provided in front of the guide nozzle 5. FIG. The waterproof stopper means 13 is a cylinder 13a.
and a shutter 13b provided on the rod, and the shutter 13b can be moved forward and backward by a cylinder 13a from a position where it blocks the path of the guide nozzle 5 to a position where it opens. The shutter 13b of the waterproof plug stopping means 13 is plate-shaped, but the shutter 13b may have any shape as long as it can stop the waterproof plug 2.

When the waterproof stopper means 13 is provided, the air conveyance device 4 is provided with high pressure (approximately 4 kgf/approx.
cm ² ) and low pressure (approximately 1 Kgf/cm ² ). High pressure air transports waterproof plug 2,
The low-pressure air is used during installation to support the waterproof plug 2 with a light force and to prevent the waterproof plug 2 from retreating.

According to FIGS. 9 and 10, the waterproof stopper stop means 13
Explain the effect when there is. First, as in the previous case, in the state shown in FIG.
grasp. Shutter 13 of waterproof stopper means 13
b is located at the opening end of the guide nozzle 5 and blocks its course. However, a slight gap S' is formed between the shutter 13b and the guide nozzle 5 for venting air.

On the other hand, one waterproof plug 2 supplied from the waterproof plug supply means 1 is fed into the air conveyance device 4 from the waterproof plug delivery means 3. When the waterproof plug 2 is sent in,
High-pressure air is supplied to the air conveying device 4, and the waterproof plug 2 flies through the air conveying device 4 and the guide nozzle 5, and comes into contact with the shutter 13b of the waterproof plug stopping means 13, and is temporarily stopped. When we touched,
Air is switched to low pressure.

Next, the shutter 13b of the waterproof stopper means 13 retreats, and high pressure air is supplied from the air pipe 7b to the guide nozzle cylinder 7, and the guide nozzle 5
moves forward toward the filamentous body 10 and puts the tip of the filamentous body 10 into the guide nozzle 5.

Almost before and after the guide nozzle 5 moves forward, the motor 1
6 is energized, the gear 14 is rotated by the gear 15, and the guide nozzle 5 moves forward while rotating as described above. At this time, the waterproof plug 2
However, it is pushed by low-pressure air from the opposite side, and the waterproof plug 2 is also rotated by the rotation of the guide nozzle 5. Therefore, instead of backing up the entire pressed length, the striatum 10
The tip of the plug is slightly inserted into the hole 2c of the waterproof plug 2. After this, the air pressure becomes high again and the waterproof plug 2
is rotated by the guide nozzle 5, and the first
As shown in Figure 0, it is fitted to the tip of the filament.
Note that the timing for starting the rotation of the guide nozzle 5 may be from an earlier point in time, for example, at the same time as the air conveying device 4 sends out the waterproof plug 2 with high-pressure air.

According to the embodiments shown in FIGS. 9 and 10, the waterproof plug 2
is temporarily stopped by the waterproof stopper means 13, so even if it has been conveyed in a crooked position, it is naturally corrected and is inserted into the filament body 10 in a straight position. Ru. Furthermore, by temporarily stopping the waterproof plug 2, it becomes possible to apply 100% of the rotation of the guide nozzle to the waterproof plug, and the waterproof plug can be installed more effectively than the embodiment shown in FIG. Therefore, the mounting accuracy is further improved.

FIG. 11 shows an embodiment in which the waterproof plug delivery means 3 is directly connected to the guide nozzle 5. Waterproof plug delivery means 3
are cylinder 3a, partition plate 3b and magazine 3c
It consists of Cylinder 3a and partition plate 3
b is the same as above. The magazine 3c has one end connected to a hole 5' on the side of the guide nozzle 5, and the other end extends upward in the figure and is connected to a waterproof plug supply means 1 such as a parts feeder. This waterproof plug delivery means 3 is fixed so that it can move forward and backward as the guide nozzle 5 moves forward and backward. Further, the rear end (right side in the figure) of the guide nozzle 5 is connected to an air supply means such as a compressor. According to this embodiment, since the transport distance of the waterproof plug 2 is short, the mounting accuracy is improved, and the entire manufacturing apparatus is easily assembled, making installation and maintenance easier. The configuration of the embodiment shown in FIG. 11 can be applied as is to all the embodiments described above. In particular, when the guide nozzle 5 shown in FIG. 6 rotates, the invention can be applied if the rotation of the guide nozzle is always stopped at the same point.

〔Effect of the invention〕

As explained above, according to the present invention, since there is little movement of the device until the waterproof plug is attached,
It enables high-speed work and leads to cost reduction.

Since there is no replacement process between the time the waterproof plug is delivered and the time when it is attached to the tip of the striatum, the attachment rate of the waterproof plug is improved.

Since the waterproof plug is attached while rotating, even if the tip of the striae is slightly opened or sagging, it can be straightened and attached, further improving the attachment rate.

Connecting the waterproof plug delivery means directly to the guide nozzle not only improves mounting accuracy, but also integrates the entire device, making installation and maintenance easier.

If the waterproof plug stopping means is used, it is possible to correct the change in the posture of the waterproof plug during air conveyance, and the mounting accuracy is further improved.

Also, by using the waterproof plug stopping means, the waterproof plug can be temporarily stopped and the rotation of the guide nozzle can be stopped.
100% given and can be installed effectively.

Since the manufacturing device and the waterproof plug supply means are connected by an air conveyance device, the arrangement is flexible and the layout is easy.

[Brief explanation of drawings]

Figure 1 is a diagram showing the configuration of a manufacturing apparatus for a striated body equipped with the waterproof plug of the present invention, and Figure 2 is a diagram of the waterproof plug.
is a partially sectional view, b is a side view, Fig. 3 is a partially cutaway view of the main part of the manufacturing device when the guide nozzle is retracted, and Fig. 4 is a partially cutaway view.
The figure is a partially cutaway view showing the guide nozzle in a state in which the guide nozzle is advanced in FIG. Figure 6 is a partially cutaway view of the main part when the guide nozzle is retracted when there is no waterproof stopper means, Figure 8 is a partially cutaway view of Figure 7 showing the guide nozzle moved forward, and Figure 9 is a partially cutaway view of the main part when the guide nozzle is retracted. Fig. 6 is a partially cutaway view of the main part of the embodiment when the guide nozzle is retracted, and Fig. 10 is a partially cutaway view of the main part of the embodiment.
11 is a partially cutaway view of an embodiment in which the waterproof plug delivery means 3 is directly connected to the guide nozzle 5, and FIG. 12 is a partially cutaway view showing the state in which the guide nozzle moves forward. FIG. 13 is a configuration diagram of a conventional example. 1...Waterproof plug supply means, 2...Waterproof plug, 3...
Waterproof plug delivery means, 4... Air conveyance device, 5...
Guide nozzle, 9...Striatal body gripping means, 10...
Striate body, 13... waterproof plug stop means, 18... guide nozzle drive means.

Claims (1)

[Claims] 1. Grasping the filament with its tip protruding, and aligning the axes to face the guide nozzle opening;
The step of advancing the guide nozzle to enter the tip of the filament into the guide nozzle, fitting the waterproof plug into the guide nozzle, adding air to the waterproof plug and transferring it inside the guide nozzle, and forming the wire into the guide nozzle. A method for producing a striated body equipped with a waterproof plug, comprising the steps of: rotating the waterproof plug with a spiral groove, and fitting the waterproof plug into the tip of the striated body. 2. Grasping the filamentous body with its tip protruding, and aligning the axes to face the guide nozzle opening;
A process of advancing the guide nozzle so that the tip of the filament body enters the guide nozzle, a process of rotating the guide nozzle around its axis, a process of fitting a waterproof plug into the guide nozzle, and adding air to the waterproof plug. 1. A method for producing a striated body equipped with a waterproof plug, the method comprising the steps of: transporting it through a rotating guide nozzle and fitting it into the tip of the striated body. 3. Grasping the filament with the tip protruding, aligning the axis with the guide nozzle opening through the waterproof plug stopping means, fitting the waterproof plug into the guide nozzle, and injecting high-pressure air into the waterproof plug. is applied and transferred through the guide nozzle, and the waterproof plug is brought into contact with the waterproof plug stopping means at the opening end of the guide nozzle to temporarily stop the waterproof plug, and after the air pressure is reduced to a low pressure, the waterproof plug stopping means is guided. a step of retreating from the nozzle opening;
A process of rotating the guide nozzle around its axis, a process of advancing the rotating guide nozzle so that the tip of the filament body enters the guide nozzle, and a process of rotating the waterproof plug using high air pressure to move the rotating waterproof plug to the filament body. 1. A method for producing a striated body equipped with a waterproof plug, the method comprising the step of inserting the waterproof plug into the tip. 4. Waterproof plug delivery means that can send out waterproof plugs one by one in the same direction, and a waterproof plug that receives the waterproof plug from the waterproof plug delivery means, is movable in the axial direction, is supplied with high-pressure air, and has a spiral groove on the inner wall. It is characterized by comprising a guide nozzle, and a filament gripping means provided at a position opposite to the opening of the guide nozzle and gripping the filament with the protruding tip of the filament facing the opening of the guide nozzle. A striatum manufacturing device equipped with a waterproof plug. 5. A waterproof plug delivery means capable of sending out waterproof plugs one by one in the same direction, a guide nozzle that receives the waterproof plug from the waterproof plug delivery means, is movable in the axial direction, and is supplied with high-pressure air, and the guide nozzle a driving means for rotating the filament around its axis; and a filament gripping means provided at a position facing the opening of the guide nozzle and gripping the filament with the protruding tip of the filament facing the opening of the guide nozzle. An apparatus for manufacturing a striatum equipped with a waterproof plug, characterized by comprising: 6. A waterproof plug delivery means that can send out waterproof plugs one by one in the same direction, and a guide nozzle that receives the waterproof plug from the waterproof plug delivery means, is movable in the axial direction, and is supplied with high-pressure air and low-pressure air; a driving means for rotating the guide nozzle about its axis;
Waterproof stopper means provided at a position opposite to the opening end of the guide nozzle and capable of retracting into the path of the guide nozzle; 1. An apparatus for manufacturing a striatum equipped with a waterproof plug, characterized by comprising a striatum gripping means for holding the striatum in a facing manner. 7. The apparatus for manufacturing a striated body equipped with a waterproof plug according to claims 4 to 6, characterized in that an air conveying device having a flexible hose is provided between the waterproof plug delivery means and the guide nozzle. 8. The apparatus for manufacturing a filament body equipped with a waterproof plug according to claims 4 to 6, characterized in that the waterproof plug delivery means is directly connected to the guide nozzle.